Here you'll find links to all available versions of Swift.
Swift 3.0 (Beta2)
(Please note that as the Mac builds are currently not signed by Apple-supplied keys, your Mac may require you to right-click on the application and choose "open", instead of double-clicking the first time)
Beta releases are provided as a preview of upcoming functionality and to gather feedback and encourage testing. While we try to keep them of a high quality, they are released with known bugs and are not suitable for deployment in critical production environments.